Synthesis and characterization of excellent transparency poly(urethane‐methacrylate)

Abstract

A series of novel crosslinked poly(urethanemethacrylate) (PUA) was synthesized. PUA was polymerized in a three-step process: The low number average molecular weight unsaturated polyester (UPE) containing hydroxyl groups was synthesized by 1,2-propanediol (PG), 2-butyl-2-ethyl-1,3-propanediol (BEPD) and maleic anhydride (MA). A series of prepolymers, which had double bonds at the end of the chain, was prepared from isophorone diisocyanate (IPDI), UPE, and b-hydroxyethyl methacrylate (HEMA) in the presence of dibutytin dilaurate (DBTL) as catalyst. The novel functional prepolymer was initiated by 2,2-azobis-isobutyronitrile(AIBN) to form thermosetting materials. The structure of the thermosetting materials was characterized by Fourier Transform Infrared (FTIR). Mechanical, thermal, and optical properties were tested. The results showed that the advanced PUA had good thermal and mechanical properties and high transparence. The throughput of PUA was above 90%, thus the PUA was possible to be used as excellent optical material.

Preparation and characterization of novel transparent Eu(AA)3‐polyurethane acrylate copolymeric materials

“…The macromonomers of polyurethane acrylate made up of C¼ ¼CA terminal groups of acrylate and polyurethane segments are functionality polymerizable intermediates and have attracted significant interest in basic research and application. [22][23][24][25] It will be a new approach to prepare novel RE polymers utilizing the polymerization activity of macromonomers of polyurethane acrylate and Eu(AA) 3 salts. Recently, RE functional materials obtained by adding RE compounds to the polyurethane matrixes have been reported.…”

Synthesis, Characterization and Properties of Soybean Oil-Based Polyurethane

“…The role of hydrogen bonds mainly occurs between the hard segments. The molecular chain is flexible and the molecular structure with small steric hindrance is conducive to the formation of hydrogen bonds [ 20 ].…”

Synthesis of urethane acrylate based electromagnetic interference shielding materials

“…After the curing reaction in the IR spectrum the absorption of double bond (CH 2 C) at 1638 cm −1 disappears. Thus, the double bonds of the UA polymerized 28…”